According to the Bitcoin history, the OpenCL miner was released publicly in October 2010. How was mining done before that? There were about 4 million coins mined until then, so there must have been ...

So i recently bought a bitcoin from a vendor , and i had it sent to my Address in multibit.
Now the problem is , the money isn't there and i'm not sure what to do.
He told me to get bitcoin (program)...

Is it possible to hard code a block and its block hash into the client so that the block chain will never diverge from the main chain past that block?
My thought is that this will improve confidence ...

While looking at the current pool luck chart on p2pool.info, I noticed that the pool as a whole seems to slowly deviate from the predicted rate of finding blocks.
From the other chart it appears that ...

This question is inspired by how the Vanity Gen pool operates. Basically there are two sets of keys and addresses: one that is stored at the Wallet hosting provider, the other set is derived from a ...

According this this WikiPage, a MultiSigTransaction that doesn't include a fee may never get included in a block.
Since I've read that replacing Transactions (by version number or any other feature) ...

Are mining pool managers evenly distributed across the planet? where are the biggest ones located? Like where are the servers physically located? Recently the backbone ISP for all of the Universities ...

As a result of an "official" change in back-end databases from BDB in v0.7 to LevelDB in v0.8, in addition to an increase (by some mining pools) to a higher block size limit, there was recent "hard ...

Here is what I have estimates on: There exists hardware capable of 60 gigahashes per second. Over the next few months, X amount of these will be mining bitcoins.
Difficulty is recalculated every 2016 ...

A week ago Kim Dotcom posted that a Bitcoin Credit Card would be something that he would be keen to support. Apart from Bitcurex, which is a different system and slightly lacking in credability and ...

Is there anything within the structure of bitcoin exchanges to prevent bitcoin price distortion with multiple accounts controlled by one person?
I have seen stocks with similar levels of liquidity be ...

Using the BTC-E API 'm getting an error of You incorrectly entered one of fields. when I post this as the data in a buy order.
{'pair': 'btc_usd', 'amount': 0.1, 'rate': 44.7084704, 'type': 'buy', '...

I have ~5 BTC on an old laptop (Windows 7) and I tried moving the balance to another client. At first I tried moving about 0.1 BTC just to see what would happen. The client debitted the balance but it ...

Bitcoin for dummies:
Is this like time banking/ time exchanges?
Is this like barter?
How do I get-earn-buy-create a bitcoin from nothing?
Do I have to buy a bitcoin?
If so, with what do I buy one?
If ...

The blockchain has a lot of information about all bitcoin transactions.
I've heard a lot of conjecture about how anonymous bitcoins transactions are, but I haven't seen a scientific study.
Are there ...

Is there one person or organization that controls Bitcoin?
What if Gavin Andresen, the lead developer, or Bitcoin Foundation, "the official bitcoin organization", decide to change something? What if ...

What would be the best way to start writing a script to automatically run a bitcoind server on an Ubuntu startup, make regular backups and restart from a backup on error. Would this normally be done ...